New images with Bert's 300mm f2.8 flourite lens

[tornado33]

Hi all
I finally got to try my new Hutech IDAS uv/ir filter in Bert's 300mm F2.8 flourite lens, along with the Baader UHCS filter.
Here's the result. The filter uv/ir definately cuts down starbloat caused by excess infra red light thats picked up by the modified 350D camera.
Both shots are 3x 10 mins ISO 200, f2.8
They are of Eta carina Nebula and NGC 3572 and environs. Taken last night (between clouds).
Larger versions here http://scottalder.fotopic.net/c940983.html
Scott

[Lester]

I never tire from looking at your work Scott.

[h0ughy (David)]

That would be right, I get all your cloud and you get great shots again Mr Alder!! Nice work as usual. Bert I would start charging him now for over exposure of your lens!

[EzyStyles (Eric)]

Very nice indeed Scott. I saved all your work on my comp

[tornado33]

Thanks people. My 10 inch mirror is back now, so plan to give that a go if the darn weather ever allows.
Scott

[iceman (Mike)]

Incredible!

[avandonk]

I held off commenting till now but the lens is obviously in very capable hands. Very nice results Scott. That UV/IR filter did the trick. You seem to have more stars up there than we have down here in Melbournes polluted skies. I guess that using an ISO of 200 gives you a greater dynamic range than at a much higher ISO.

Bert

[ballaratdragons (Ken)]

'Amazing' is how I describe Berts images and now yours too Scott!

And they spent how much on Hubble . . . pfft!

[tornado33]

Thanks all
Yes ISO 200 gives the best dynamic range, and the very fast F2.8 F ratio gets around the fact that ISO 200 is slower then ISO 1600
I might try using my H alpha filter in tandem with the uv/ir filter with the lens and see how that goes, I will do that when the moon is near full and normal imaging not worthwhile.
Scott